{
  "id": "CVE-2019-14877",
  "sourceIdentifier": "secalert@redhat.com",
  "published": "2020-03-19T16:15:13.877",
  "lastModified": "2024-11-21T04:27:34.930",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the __mdiff function of the newlib libc library, all versions prior to 3.3.0 (see newlib/libc/stdlib/mprec.c), Balloc is used to allocate big integers, however no check is performed to verify if the allocation succeeded or not. The access to _wds and _sign will trigger a null pointer dereference bug in case of a memory allocation failure."
    },
    {
      "lang": "es",
      "value": "En la funci\u00f3n __mdiff de la biblioteca newlib libc, todas las versiones anteriores a 3.3.0 (ver el archivo newlib/libc/stdlib/mprec.c), Balloc es utilizado para asignar enteros grandes, sin embargo, ninguna comprobaci\u00f3n es realizada para verificar si la asignaci\u00f3n tuvo \u00e9xito o no. El acceso a _wds y _sign activar\u00e1 un bug de desreferencia del puntero null en caso de un fallo de asignaci\u00f3n de la memoria"
    }
  ],
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        "type": "Primary",
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          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
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        "exploitabilityScore": 2.8,
        "impactScore": 3.6
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          "confidentialityImpact": "NONE",
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          "availabilityImpact": "HIGH"
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        "exploitabilityScore": 2.8,
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          "authentication": "SINGLE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.0,
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        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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      "source": "secalert@redhat.com",
      "type": "Secondary",
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  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:newlib_project:newlib:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "3.3.0",
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  "references": [
    {
      "url": "https://census-labs.com/news/2020/01/31/multiple-null-pointer-dereference-vulnerabilities-in-newlib/",
      "source": "secalert@redhat.com",
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}